• Get The Right Amp - These POUND!

  
  As reviewed by DJ Tony C on 10/19/2006

  I now own two of the JBL MRX518S Subwoofers. I use them with a QSC amp and these babies hit hard! I tried it out at the Tacoma Guitar Center and was really impressed with how hard it hit and how clear the bass sound was. I used these at a school dance, and the kids loved the bass sound - not because it was loud, but because it provided the right emphasis to the music and didn't overpower the cabs I had and there wasn't a loud bass sound that distorted the music. I love the JBL MRX line and I will soon buy into the complete system!

  14 of 15 people found this review helpful.
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• If weight is a factor, you'll want the JBLMRX518s.

  
  As reviewed by TheBeeOBee on 10/31/2006

  I bought a pair of these at Guitar Center to go with the MRX515 tops. These MRX518s subs are quite subtle as far as subs go, and dont necessarily give you the "I need a chiropractor" feeling. Instead, they give you a great sense of a much "fuller" sound being reproduced in the room and everyone will immediately notice the difference in your setup when you turn them on. At the first gig I used these in, that is what we experienced. While the band was setting up, i was playing music through the sound system...i forgot to turn the sub on...when i realized and turned on the amp the whole place started bobbing their heads and gave me compliments on the sound. I do like a more sub-heavy sound so I may still purchase the dual subs, but if size and weight is a factor, these are some of the best in the category. Just remember, get some good amps! They like at least 1000 watts at 4ohms. It's worth getting the quality to get the best out of these wonderul speakers.

  13 of 14 people found this review helpful.
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• Good Smooth Punch

  
  As reviewed by Mike on 12/15/2008

  We bought a pair of these for a small church install along with the MRX 515 mains. They have good punch and are not overly sloppy sounding. You will want to tune your crossover frequency based upon your room and how tight you want the bass to be. As you dial up the crossover frequency, they will lose a little of the boom and get little fuller sounding, but it really depends upon your room. We analyzed (RTA) the room after install and found that these subs were super even from 40Hz to 90Hz. Use the 40Hz rolloff button if your crossover has one, otherwise it can get too muddy.

  7 of 9 people found this review helpful.
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